This is a replacement panel filter for Porsche 911. For all fitments see below: Porsche – 911 – 3.6 GT2 – 2001 – 2005 Porsche – 911 – 3.6 GT3 – 1999 – 2009 Porsche – 911 – 3.6 S – 2004 – 2005 Porsche – 911 – 3.6 Turbo 4 – 2000 – 2005 Porsche – 911 – 3.6 Turbo 4S – 2003 – 2005 Porsche – 911 – 3.8 GT3 – 2009 – 2011 Features High Performance, MAF Safe, twin layer, fully reticulated foam Fits in the OEM Airbox and replaces inefficient paper filter Lifetime washable filter Stainless steel cage support structure Guaranteed surface area using high quality custom blended polymer What Does It Do? The Ramair Panel Filter range is made from twin core Ramair Aeriform foam and our stainless steel cage which is used in many of our tier 1 Motorsport applications for maximum strength. A rubber polymer surround gives a fantastic clean and smooth finish with longevity in mind. These filters are direct replacements for the OEM air filter in your car, making this filter easy to fit and maintain. Ramair twin core foam is unique and like no other in the market. Our foam is designed to give maximum dust filtration along with optimum performance. Filter Length: 521mm Filter Width: 176mm Filter Shape: Rectangle Filter Material: 15mm Dual Layer Foam If you have any queries on product fitment then please contact us via 01793 296 342 or on our live chat and one of our brand associates will be more than happy to assist.